Document YD326z63XZ1R8NR6Jpb6905Xy

1008 $ o pa p' < S Hi 3* S* H o t*2< fe "q CHQ Se 3 co p* O ^ a< H 55 X < H s H S 02 a x S K< S oo os Sfcpfe* *i i 8a t>> 3 "o O0OuS. 'a, a -S Is ss 1 0* o K> o CHAPTER 46 a 3 3 oarmaceuticals Blenders Coating pans Centrifuges Hammer mills Oscillators Shakers Mixers Process kettles curing hoods Foundry Rock drilling Dry drilling (rc a 1 ; Hood Enoloe i a a s fi CsO 0 1| Jl 9 28 2 Ha5> wb 7Waa3 J7Wa53 8 I 1a ! N , tCQO CO . 55 S 7 CO oo 2 Air Flow 200fpm thru feedand inspection open- ga 00 cfm (for fume and gas removal) diotiy exhausted from projector housing to 200fpm through opening cfm exh 24-in. diam. pan fm supply direct to pan. Differential cfm . 300 fpm through opening fpm but not less than 50cfm ; less than 75cfm per eg ft of plan area -250 fpm through opening- or manhole to 300 cfm per linear ft of hood with ot *velocities of. 1500 fpra. Exhaust .ke-off every 8 to 10ft ifm--vertical (downward) work ofm--horizontal work o if ICOT CO --< o co 4 7 S2: g o 2 Ref. 30 change Exhaust empty Flexible tendei ered a 'Ic" dT 73 * WK .. tf 350C Ref" 25, speed alterhi cn =: 2 **1 M u- & 2*a 2 5sa |3f | .8 a a sg e -'3Srf85.fSi fc*.S -- 'SS o-s ja8b. a.2 oa ...*85 O ob T SS 22 ^ias .R o bd-^s-S g.O-0 *-ac3?a3-.g8d3- * _ o.S. 2 & 1 8 C aooa*Se8Sg3o, ---3 a [m or 20-30I air heat removu1 * s b 5: g u 3 A T5 . S' 3 d ad fu IdSftj i -gg. 'o3 CCOO CD C4 eCOi i M -3 pi - fi '.2 'ia ' 8 a ^3 oa T > ao 6 **aod 73 pi . o <2 aa .CO b N A bd 33 AJ <y a a J*S m8 M -.2 3 .Cty' 1954 Guide $ff & OCO CCaC^OM. Oa ^b s a is g" B ii' ** .2 8 d S*2 2 O<Ma-8i ?gb ^ S .O . CO b 3 8 Wa --aJ4 n d" gJ3 "d |PK 03 CO * ' . eo .3 o a H' ll oa 3 Ad Foi. co . . . .ufpt mnotthlersosutgnhanal2l0o0pcefnminpgesrisnqefntcolof gsurarete, rea > IT a b l e 2. A G u id e to V e n t il a t io n R a te s fo r T y p ic a l n d u s t r ia l E q u ip m e n t (Concluded) Slate or Local Regulations Should be Consulted and Followed Where Higher V entilation Rates are Specified